type Multi2Key<K1,K2> = [K1,K2]
export class Multi2KeyMap<K1,K2,V>{
    map :Map<Multi2Key<K1,K2>,V>
    public put(k1:K1,k2:K2,value:V){
        let iter = this.map.keys()
        let next = iter.next()
        while(next){
            next.value[0]
        }
    
    }
}